Finding the Fourth Proportional to 12,253,481.40, 18,367,610.76 and 5,433,266.55
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Solution
The fourth proportional to 12,253,481.40, 18,367,610.76 and 5,433,266.55 is: 8,144,307.88
Step by Step Solution
- Step 1: Write the proportion equation
12,253,481.40 : 18,367,610.76 = 5,433,266.55 : x - Step 2: Convert to fraction form
12,253,481.40/18,367,610.76 = 5,433,266.55/x - Step 3: Cross multiply
12,253,481.40x = 18,367,610.76 × 5,433,266.55 - Step 4: Simplify right side
12,253,481.40x = 99,796,125,145,728.08 - Step 5: Solve for x
x = 99,796,125,145,728.08/12,253,481.40 - Step 6: Final answer
x = 8,144,307.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.